15087023040 has 112 divisors (see below), whose sum is σ = 48395424672.
Its totient is φ = 3981705216.
The previous prime is 15087023033. The next prime is 15087023041. The reversal of 15087023040 is 4032078051.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 15087022989 and 15087023007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15087023041) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12112 + ... + 174128.
It is an arithmetic number, because the mean of its divisors is an integer number (432102006).
Almost surely, 215087023040 is an apocalyptic number.
15087023040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 15087023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24197712336).
15087023040 is an abundant number, since it is smaller than the sum of its proper divisors (33308401632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15087023040 is a wasteful number, since it uses less digits than its factorization.
15087023040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 162134 (or 162124 counting only the distinct ones).
The product of its (nonzero) digits is 6720, while the sum is 30.
The spelling of 15087023040 in words is "fifteen billion, eighty-seven million, twenty-three thousand, forty".